Steampunk Books Coming out in August & September

Every month, the good folks over at SF Signal compile an awesome list of science fiction, fantasy, and horror (and related) books coming out in the next month. Here are the Steampunk-relevant/related/adjacent ones from the lists for August and September, but please take a gander at the full lists for August and September titles if you are looking for reading material from outside our little corner of the SF-osphere.